MARKET STUDY All analysis covers resale homes only. New construction appears once, in its own section. Click any dot on the map for that sale.
Resale sales, 365 days
30
single-family resale homes
Median net sale price
$577,000
average $593,450
Median net price per SF
$197
average $198
Median days on market
38 days
average 74 days
1. SummaryResale homes · 30 sales · October 26, 2025 – October 25, 2026
This study looks at the 30 resale homes sold in Parkside at Mayfield Ranch in the 365 days to October 25, 2026. A full year is used because only 18 resale homes sold in the last 180 days. New construction is left out and shown on its own in section 7. The homes are compared four ways: by price, by living area, by year built and with or without a view. The first three are split into four equal groups (quartiles), each named by its range.
Each comparison has its own section (3–6) with everything about it in one place: the key differences, a table of every measure at a glance, the charts and the numbers.
2. Where the resale homes sold30 resale homes · colored by price range
Each dot is one resale home, colored by its price range. Use the buttons to show one price range at a time. Click a dot for that sale: address, close date, original and last list price, net sale price, living area, net sale per SF and days on market. Scroll or pinch to zoom.
3. Quartiles by net sale priceResale homes · 30 sales · October 26, 2025 – October 25, 2026
Sales ranked by net sale price and cut into four equal groups. This is the usual way to read a market by price.
Bottom line
Homes over $649K are about 1,250 SF (53%) larger than homes under $523K.
3.1 Key differences
The top group against the bottom group. Only real differences are listed. Section 8 explains each measure.
Under $523K$523K–$569K$585K–$649KOver $649K
Higher-priced homes Over $649K
Are much larger.
Lower-priced homes Under $523K
Are much smaller.
3.2 At a glance
Shaded rows are real differences; the darkest cell is the highest. Gray rows show no clear difference. Prices are averages; days on market and year built are medians.
Under $523K
$523K–$569K
$585K–$649K
Over $649K
Real difference?
Net price per SF
$191 per SF
$195 per SF
$198 per SF
$208 per SF
unclear
Living area
2,357 SFSmallest
2,821 SF
3,158 SF
3,608 SFLargest
✓ large
Year built
2013
2013
2014
2015
unclear
Days on market
78 days
41 days
98 days
17 days
unclear
Discount from original list
7.7%
5.0%
5.5%
3.0%
unclear
Price cut before sale
57%
38%
57%
12%
unclear
Seller paid closing costs or repairs
71%
50%
43%
62%
unclear
Has a view
14%
12%
71%
25%
unclear
How to read this section. Each heading gives the finding. The gold box says whether the gap is real (✓, with its size) or could be chance (–). The section ends with its numbers; the tests are in section 8.3.
3.3 Net price per SF: no clear difference
The average is $208 per SF for homes over $649K and $191 per SF for homes under $523K. It rises step by step from the lowest range to the highest. Defined in 8.1.2.
– No clear difference · could be chance
3.4 Homes over $649K are about 1,250 SF (53%) larger than homes under $523K
The average is 3,608 SF for homes over $649K and 2,357 SF for homes under $523K. It rises step by step from the lowest range to the highest. Defined in 8.1.3.
✓ Real difference · large
3.5 Year built: no clear difference
The median is 2015 for homes over $649K and 2013 for homes under $523K. It rises step by step from the lowest range to the highest. Defined in 8.1.4.
– No clear difference · could be chance
3.6 Days on market: no clear difference
The median is 17 days for homes over $649K and 78 days for homes under $523K. It does not move in a straight line; homes $585K–$649K are highest. Defined in 8.1.5.
– No clear difference · could be chance
3.7 Discount from original list: no clear difference
The average is 3.0% for homes over $649K and 7.7% for homes under $523K. It does not move in a straight line; homes under $523K are highest. Defined in 8.1.6.
– No clear difference · could be chance
3.8 How often: price cut before sale, seller paid closing costs or repairs, has a view
Each bar is the share of homes in the group, in percent.
12% of homes over $649K had a price cut before sale, against 57% of homes under $523K. Defined in 8.1.7.
62% of homes over $649K had the seller pay closing costs or repairs, against 71% of homes under $523K. Defined in 8.1.8.
25% of homes over $649K have a view, against 14% of homes under $523K. Defined in 8.1.9.
Price cut before sale: – No clear difference · could be chance
Seller paid closing costs or repairs: – No clear difference · could be chance
Has a view: – No clear difference · could be chance
3.9 The numbers: price and size
Under $523K7 sales
$523K–$569K8 sales
$585K–$649K7 sales
Over $649K8 sales
All30 sales
Real difference?
Net sale price average
$440,626
$544,312
$620,857
$752,326
$593,450
by design
Net price per SF average
$191
$195
$198
$208
$198
unclear
Living area average
2,357
2,821
3,158
3,608
3,001
✓ large
Year built median
2013
2013
2014
2015
2014
unclear
3.10 The numbers: selling
Under $523K7 sales
$523K–$569K8 sales
$585K–$649K7 sales
Over $649K8 sales
All30 sales
Real difference?
Days on market median
78
41
98
17
38
unclear
Discount from original list average
7.7%
5.0%
5.5%
3.0%
5.2%
unclear
Price cut before sale
57%
38%
57%
12%
40%
unclear
Seller paid closing costs or repairs
71%
50%
43%
62%
57%
unclear
Has a view
14%
12%
71%
25%
30%
unclear
Prices, price per SF, living area and discount are averages; days on market and year built are medians. The test behind each verdict is in 8.3.1.
4. Quartiles by living areaResale homes · 30 sales · October 26, 2025 – October 25, 2026
Sales ranked by living area and cut into four equal groups, from the smallest homes to the largest.
Bottom line
Homes over 3,381 SF sell for about $279K (59%) more than homes under 2,825 SF.
4.1 Key differences
The top group against the bottom group. Only real differences are listed. Section 8 explains each measure.
Under 2,825 SF2,825–2,985 SF2,997–3,381 SFOver 3,381 SF
Larger homes Over 3,381 SF
Sell for much more.
Smaller homes Under 2,825 SF
Sell for much less.
4.2 At a glance
Shaded rows are real differences; the darkest cell is the highest. Gray rows show no clear difference. Prices are averages; days on market and year built are medians.
Under 2,825 SF
2,825–2,985 SF
2,997–3,381 SF
Over 3,381 SF
Real difference?
Net sale price
$472KLowest
$558K
$588K
$751KHighest
✓ large
Net price per SF
$208 per SF
$191 per SF
$188 per SF
$203 per SF
unclear
Year built
2015
2014
2014
2014
unclear
Days on market
26 days
33 days
148 days
25 days
unclear
Discount from original list
3.9%
5.4%
7.8%
4.1%
unclear
Price cut before sale
25%
43%
71%
25%
unclear
Seller paid closing costs or repairs
50%
86%
29%
62%
unclear
Has a view
25%
29%
57%
12%
unclear
4.3 Homes over 3,381 SF sell for about $279K (59%) more than homes under 2,825 SF
The average is $751K for homes over 3,381 SF and $472K for homes under 2,825 SF. It rises step by step from the lowest range to the highest. Defined in 8.1.1.
✓ Real difference · large
4.4 Net price per SF: no clear difference
The average is $203 per SF for homes over 3,381 SF and $208 per SF for homes under 2,825 SF. It does not move in a straight line; homes under 2,825 SF are highest. Defined in 8.1.2.
– No clear difference · could be chance
4.5 Year built: no clear difference
The median is 2014 for homes over 3,381 SF and 2015 for homes under 2,825 SF. It does not move in a straight line; homes under 2,825 SF are highest. Defined in 8.1.4.
– No clear difference · could be chance
4.6 Days on market: no clear difference
The median is 25 days for homes over 3,381 SF and 26 days for homes under 2,825 SF. It does not move in a straight line; homes 2,997–3,381 SF are highest. Defined in 8.1.5.
– No clear difference · could be chance
4.7 Discount from original list: no clear difference
The average is 4.1% for homes over 3,381 SF and 3.9% for homes under 2,825 SF. It does not move in a straight line; homes 2,997–3,381 SF are highest. Defined in 8.1.6.
– No clear difference · could be chance
4.8 How often: price cut before sale, seller paid closing costs or repairs, has a view
Each bar is the share of homes in the group, in percent.
25% of homes over 3,381 SF had a price cut before sale, against 25% of homes under 2,825 SF. Defined in 8.1.7.
62% of homes over 3,381 SF had the seller pay closing costs or repairs, against 50% of homes under 2,825 SF. Defined in 8.1.8.
12% of homes over 3,381 SF have a view, against 25% of homes under 2,825 SF. Defined in 8.1.9.
Price cut before sale: – No clear difference · could be chance
Seller paid closing costs or repairs: – No clear difference · could be chance
Has a view: – No clear difference · could be chance
4.9 The numbers: price and size
Under 2,825 SF8 sales
2,825–2,985 SF7 sales
2,997–3,381 SF7 sales
Over 3,381 SF8 sales
All30 sales
Real difference?
Net sale price average
$471,998
$557,929
$587,700
$751,014
$593,450
✓ large
Net price per SF average
$208
$191
$188
$203
$198
unclear
Living area average
2,268
2,929
3,132
3,683
3,001
by design
Year built median
2015
2014
2014
2014
2014
unclear
4.10 The numbers: selling
Under 2,825 SF8 sales
2,825–2,985 SF7 sales
2,997–3,381 SF7 sales
Over 3,381 SF8 sales
All30 sales
Real difference?
Days on market median
26
33
148
25
38
unclear
Discount from original list average
3.9%
5.4%
7.8%
4.1%
5.2%
unclear
Price cut before sale
25%
43%
71%
25%
40%
unclear
Seller paid closing costs or repairs
50%
86%
29%
62%
57%
unclear
Has a view
25%
29%
57%
12%
30%
unclear
Prices, price per SF, living area and discount are averages; days on market and year built are medians. The test behind each verdict is in 8.3.2.
5. Quartiles by year builtResale homes · 30 sales · October 26, 2025 – October 25, 2026
Sales ranked by year built and cut into four groups, from the oldest to the newest. Homes built in the same year always stay in the same group, so group sizes can differ a little.
Bottom line: no measure differs enough between the groups to rule out chance.
5.1 Key differences
The top group against the bottom group: no measure differs enough to rule out chance.
5.2 At a glance
Shaded rows are real differences; the darkest cell is the highest. Gray rows show no clear difference. Prices are averages; days on market and year built are medians.
Before 2012
2012–2014
2015
After 2015
Real difference?
Net sale price
$545K
$616K
$590K
$629K
unclear
Net price per SF
$187 per SF
$200 per SF
$203 per SF
$205 per SF
unclear
Living area
2,950 SF
3,099 SF
2,881 SF
3,067 SF
unclear
Days on market
78 days
10 days
25 days
98 days
unclear
Discount from original list
7.7%
4.9%
5.3%
2.8%
unclear
Price cut before sale
67%
33%
33%
22%
unclear
Seller paid closing costs or repairs
44%
83%
50%
56%
unclear
Has a view
11%
33%
33%
44%
unclear
5.3 Net sale price: no clear difference
The average is $629K for homes built after 2015 and $545K for homes built before 2012. It does not move in a straight line; homes built after 2015 are highest. Defined in 8.1.1.
– No clear difference · could be chance
5.4 Net price per SF: no clear difference
The average is $205 per SF for homes built after 2015 and $187 per SF for homes built before 2012. It rises step by step from the lowest range to the highest. Defined in 8.1.2.
– No clear difference · could be chance
5.5 Living area: no clear difference
The average is 3,067 SF for homes built after 2015 and 2,950 SF for homes built before 2012. It does not move in a straight line; homes built 2012–2014 are highest. Defined in 8.1.3.
– No clear difference · could be chance
5.6 Days on market: no clear difference
The median is 98 days for homes built after 2015 and 78 days for homes built before 2012. It does not move in a straight line; homes built after 2015 are highest. Defined in 8.1.5.
– No clear difference · could be chance
5.7 Discount from original list: no clear difference
The average is 2.8% for homes built after 2015 and 7.7% for homes built before 2012. It does not move in a straight line; homes built before 2012 are highest. Defined in 8.1.6.
– No clear difference · could be chance
5.8 How often: price cut before sale, seller paid closing costs or repairs, has a view
Each bar is the share of homes in the group, in percent.
22% of homes built after 2015 had a price cut before sale, against 67% of homes built before 2012. Defined in 8.1.7.
56% of homes built after 2015 had the seller pay closing costs or repairs, against 44% of homes built before 2012. Defined in 8.1.8.
44% of homes built after 2015 have a view, against 11% of homes built before 2012. Defined in 8.1.9.
Price cut before sale: – No clear difference · could be chance
Seller paid closing costs or repairs: – No clear difference · could be chance
Has a view: – No clear difference · could be chance
5.9 The numbers: price and size
Before 20129 sales
2012–20146 sales
20156 sales
After 20159 sales
All30 sales
Real difference?
Net sale price average
$545,069
$616,431
$590,375
$628,559
$593,450
unclear
Net price per SF average
$187
$200
$203
$205
$198
unclear
Living area average
2,950
3,099
2,881
3,067
3,001
unclear
Year built median
2010
2014
2015
2016
2014
by design
5.10 The numbers: selling
Before 20129 sales
2012–20146 sales
20156 sales
After 20159 sales
All30 sales
Real difference?
Days on market median
78
10
25
98
38
unclear
Discount from original list average
7.7%
4.9%
5.3%
2.8%
5.2%
unclear
Price cut before sale
67%
33%
33%
22%
40%
unclear
Seller paid closing costs or repairs
44%
83%
50%
56%
57%
unclear
Has a view
11%
33%
33%
44%
30%
unclear
Prices, price per SF, living area and discount are averages; days on market and year built are medians. The test behind each verdict is in 8.3.3.
6. View and no viewResale homes · 30 sales · October 26, 2025 – October 25, 2026
Sales where the MLS lists a view (greenbelt or park, trees, golf course, hill country, water and similar) against those listing none or only the neighborhood. 1 sales whose MLS view entry is only “See Remarks” are left out.
Bottom line: no measure differs enough between the groups to rule out chance.
6.1 Key differences
The top group against the bottom group: no measure differs enough to rule out chance.
6.2 At a glance
Shaded rows are real differences; the darkest cell is the highest. Gray rows show no clear difference. Prices are averages; days on market and year built are medians.
View
No view
Real difference?
Net sale price
$617K
$592K
unclear
Net price per SF
$203 per SF
$196 per SF
unclear
Living area
3,046 SF
3,028 SF
unclear
Year built
2015
2014
unclear
Days on market
42 days
33 days
unclear
Discount from original list
4.7%
5.1%
unclear
Price cut before sale
44%
35%
unclear
Seller paid closing costs or repairs
33%
65%
unclear
6.3 Net sale price: no clear difference
The average is $617K for homes with a view and $592K for homes without a view. Defined in 8.1.1.
– No clear difference · could be chance
6.4 Net price per SF: no clear difference
The average is $203 per SF for homes with a view and $196 per SF for homes without a view. Defined in 8.1.2.
– No clear difference · could be chance
6.5 Living area: no clear difference
The average is 3,046 SF for homes with a view and 3,028 SF for homes without a view. Defined in 8.1.3.
– No clear difference · could be chance
6.6 Year built: no clear difference
The median is 2015 for homes with a view and 2014 for homes without a view. Defined in 8.1.4.
– No clear difference · could be chance
6.7 Days on market: no clear difference
The median is 42 days for homes with a view and 33 days for homes without a view. Defined in 8.1.5.
– No clear difference · could be chance
6.8 Discount from original list: no clear difference
The average is 4.7% for homes with a view and 5.1% for homes without a view. Defined in 8.1.6.
– No clear difference · could be chance
6.9 How often: price cut before sale, seller paid closing costs or repairs
Each bar is the share of homes in the group, in percent.
44% of homes with a view had a price cut before sale, against 35% of homes without a view. Defined in 8.1.7.
33% of homes with a view had the seller pay closing costs or repairs, against 65% of homes without a view. Defined in 8.1.8.
Price cut before sale: – No clear difference · could be chance
Seller paid closing costs or repairs: – No clear difference · could be chance
6.10 The numbers: price and size
View9 sales
No view20 sales
All29 sales
Real difference?
Net sale price average
$616,615
$592,223
$599,793
unclear
Net price per SF average
$203
$196
$198
unclear
Living area average
3,046
3,028
3,033
unclear
Year built median
2015
2014
2014
unclear
6.11 The numbers: selling
View9 sales
No view20 sales
All29 sales
Real difference?
Days on market median
42
33
33
unclear
Discount from original list average
4.7%
5.1%
5.0%
unclear
Price cut before sale
44%
35%
38%
unclear
Seller paid closing costs or repairs
33%
65%
55%
unclear
Prices, price per SF, living area and discount are averages; days on market and year built are medians. The test behind each verdict is in 8.3.4.
7. New constructionBasic statistics · 0 sales · October 26, 2025 – October 25, 2026
Homes sold new by the builder in the same 365 days. They are left out of every other section and shown here as basic figures only: 0 sales, no groups, no tests.
Note: these are only the new-construction sales reported in ABOR MLS. Builders often sell homes without listing them in the MLS, so these figures do not necessarily represent all new-construction sales in Parkside at Mayfield Ranch.
No new-construction sales were reported in ABOR MLS in this window.
Same definitions as the rest of the study (section 8). New construction = NewConstructionYN true, or PropertyCondition “New Construction” or “Under Construction”.
8. AppendixMeasures, methods and tests
Each measure and method three ways: in plain words, as statistics, and with the data from this study.
8.1 Measures
8.1.1 Net sale price
In simple terms
What the seller actually kept: the closing price, less money the seller gave back to the buyer for closing costs or repairs. It is the truest price for comparing homes.
Statistically
Net = ClosePrice − ACTRIS_BuyersClsgCostPdbySell − ACTRIS_RepairsAmount (a blank counts as $0). Summarized by the arithmetic mean in the slices.
The data
30 resale sales. Average $593,450; median $577,000; standard deviation $126,655; middle half (25th–75th percentile) $523,000–$656,875; lowest $376,250, highest $920,000. 17 sales had a seller payment; their median payment was $4,115.
8.1.2 Net price per SF
In simple terms
Net sale price divided by the heated and cooled square feet. It puts homes of different sizes on the same footing: did buyers pay more for each square foot, not just for more square feet?
Statistically
psf = Net ÷ LivingArea, per sale; summarized by the mean of the per-sale ratios.
The data
30 resale sales. Average $198; median $197; standard deviation $19; middle half (25th–75th percentile) $186–$212; lowest $162, highest $240.
8.1.3 Living area
In simple terms
The heated and cooled space, as listed in the MLS. Garages and porches are not counted.
Statistically
RESO LivingArea, in square feet. Sales under 400 SF are treated as entry errors and left out.
The data
30 resale sales. Average 3,001; median 2,991; standard deviation 569; middle half (25th–75th percentile) 2,761–3,452; lowest 1,819, highest 4,069.
8.1.4 Year built
In simple terms
The year the home was finished, as listed in the MLS. It shows whether a group leans to older or newer phases of the community.
Statistically
RESO YearBuilt; summarized by the median, with the 25th–75th percentile (middle half) on the charts.
The data
30 resale sales. Average 2014; median 2014; standard deviation 3; middle half (25th–75th percentile) 2011–2016; lowest 2008, highest 2017.
8.1.5 Days on market
In simple terms
How many days the home was on the market before the buyer's offer was accepted, counting any earlier listing periods (relists). This is the days on market agents and clients quote.
Statistically
CDOM = max(CumulativeDaysOnMarket, DaysOnMarket, PurchaseContractDate − ListingContractDate). The MLS counter can freeze at a price change, so the contract-date gap is a floor. Summarized by the median, because a few homes that sat for months pull an average up.
The data
30 resale sales. Average 74; median 38; standard deviation 74; middle half (25th–75th percentile) 16–129; lowest 4, highest 258. 0 sales went under contract on their listing date (0 days).
8.1.6 Discount from original list
In simple terms
How far below the first asking price the home sold, after seller payments. It measures how much negotiating room sellers gave up. A negative figure means the home sold above its first asking price.
Statistically
Discount % = (OriginalListPrice − Net) ÷ OriginalListPrice × 100, per sale; summarized by the mean.
The data
30 resale sales. Average 5.2%; median 3.9%; standard deviation 6.2%; middle half (25th–75th percentile) 0.6%–9.7%; lowest −7.0%, highest 21.4%. 5 sales closed above their first asking price.
8.1.7 Price cut before sale
In simple terms
The asking price was lowered at least once before the home went under contract.
Statistically
Indicator: ListPrice at close < OriginalListPrice. Reported as the share of sales (%).
The data
12 of 30 resale sales (40.0%).
8.1.8 Seller paid closing costs or repairs
In simple terms
The seller paid some of the buyer's closing costs or repairs.
Statistically
Indicator: ACTRIS_BuyersClsgCostPdbySell + ACTRIS_RepairsAmount > 0. Reported as the share of sales (%).
The data
17 of 30 resale sales (56.7%).
8.1.9 Has a view
In simple terms
The MLS says the home looks over something: a greenbelt or park, trees, golf course, hill country, water and similar.
Statistically
View = the View field holds any entry other than “None”, “Neighborhood” or “See Remarks”. No view = only “None” and/or “Neighborhood”. A record whose only entry is “See Remarks” cannot be classified and is left out of the view slice.
The data
9 sales with a view, 20 without, 1 unclassified. Most common View entries: None 18, Park/Greenbelt 5, Trees/Woods 5, Neighborhood 2, See Remarks 2, Pond 1, Hill Country 1, Rural 1.
8.2 Methods
8.2.1 Data source
In simple terms
Every figure comes from the Austin Board of REALTORS® MLS, read live by ALEX. No figure is estimated or typed in.
Statistically
Bridge Interactive RESO Web API (OData), ABOR dataset, every field returned. Filter: StandardStatus = Closed, PropertyType = Residential, City = Georgetown, SubdivisionName contains any of “parkside at mayfield ranch”, “parkside mayfield ranch” (case-insensitive). A record is kept when its subdivision name belongs to the Parkside at Mayfield Ranch family, the same rule comparable sales use (it includes Parkside/Mayfield Ranch Sec 12, proven adjacent and priced alike).
The data
Pulled October 26, 2026: 30 closed Parkside at Mayfield Ranch records over the prior year, in ZIP 78628. 9 subdivision spellings kept: Parkside at Mayfield Ranch (17); Parkside At Mayfield Ranch Sec 01 (3); PARKSIDE AT MAYFIELD RANCH (3); Parkside At Mayfield Ranch (2); Parkside at Mayfield Ranch Sec 4B (1); Parkside At Mayfield Ranch Sec 10 (1); Parkside Mayfield Ranch Sec (1); Parkside At Mayfield Ranch Sec 02 (1); Parkside at Mayfield Ranch Sec 8 (1). No other names were found by the search.
8.2.2 Study window
In simple terms
The most recent 365 days of closed sales: recent enough to describe today's market, long enough to give each group plenty of sales. The usual window is 180 days; it holds only 18 resale sales here (under 80), so the full year is used.
Statistically
CloseDate from October 26, 2025 to October 25, 2026 inclusive.
The data
30 single-family sales in the window: 30 resale, 0 new construction.
8.2.3 Resale and new construction
In simple terms
A resale home was previously owned. New construction is sold by the builder and behaves differently, so it is kept out of every analysis and reported once on its own.
Statistically
New construction = NewConstructionYN true, or PropertyCondition contains “New Construction” or “Under Construction”. Everything else is resale.
The data
30 resale; 0 new construction.
8.2.4 Sales left out
In simple terms
A few records cannot be used as entered and are left out before any analysis.
Statistically
Excluded: PropertySubType other than Single Family Residence; no OriginalListPrice; LivingArea under 400 SF; seller payments above 10% of ClosePrice (treated as entry errors).
The data
None in this window.
8.2.5 Quartiles and groups
In simple terms
Sales lined up from lowest to highest and cut into four groups of about equal size. Each group is named by its range, for example “Under $523K”.
Statistically
Sort by the slicing variable; cut k sits at round(nk/4), k = 1…3. A cut that would split tied values moves to the nearer edge of the tie. A group under 3 sales merges into its smaller neighbor. Range names use the next group's lowest value (“Under”) and the previous group's highest value (“Over”/“After”).
The data
Quartiles by net sale price: Under $523K: $376,250–$502,400 (7 sales); $523K–$569K: $523,000–$569,000 (8 sales); $585K–$649K: $585,000–$649,000 (7 sales); Over $649K: $659,500–$920,000 (8 sales) Quartiles by living area: Under 2,825 SF: 1,819–2,740 SF (8 sales); 2,825–2,985 SF: 2,825–2,985 SF (7 sales); 2,997–3,381 SF: 2,997–3,381 SF (7 sales); Over 3,381 SF: 3,476–4,069 SF (8 sales) Quartiles by year built: Before 2012: 2008–2011 (9 sales); 2012–2014: 2012–2014 (6 sales); 2015: 2015–2015 (6 sales); After 2015: 2016–2017 (9 sales) View and no view: View: MLS lists a view (9 sales); No view: None or Neighborhood (20 sales)
8.2.6 Average and median
In simple terms
The average adds the values and divides by how many; one very expensive home can pull it up. The median is the middle value, with half above and half below.
Statistically
Mean x̄ = (1/n) Σ xᵢ; median = 50th percentile. Price, price per SF, living area and discount use the mean; days on market and year built use the median (skewed or whole-year values).
The data
Net sale price: average $593,450, median $577,000. Days on market: average 74, median 38: the average is pulled up by a few long listings.
8.2.7 Kruskal–Wallis test
In simple terms
Checks whether a measure really differs across the four groups of a slice. It uses each sale's rank, not its value, so a few extreme sales cannot drive the answer.
Statistically
H = [12/(n(n+1))] Σ Rⱼ²/nⱼ − 3(n+1), compared with χ² on k − 1 degrees of freedom (Kruskal & Wallis, 1952). Effect size ε² = H/(n − 1): ≥ .01 small, ≥ .06 medium, ≥ .14 large (Tomczak & Tomczak, 2014). A slice is tested only when every group has at least 5 sales; smaller groups are described, not tested.
The data
Run on every measure in sections 3–5; each result is in 8.3.
8.2.8 Mann–Whitney U test
In simple terms
The same check when there are only two groups: view against no view.
Statistically
Two-sided U test (Mann & Whitney, 1947). Effect size = rank-biserial correlation |1 − 2U/(n₁n₂)|: ≥ .10 small, ≥ .30 medium, ≥ .50 large (Kerby, 2014; Cohen, 1988).
The data
Run on every measure in section 6; results in 8.3.
8.2.9 Chi-square test
In simple terms
Checks whether a yes/no share (price cut, seller payment, view) differs between groups more than chance would.
Statistically
Pearson χ² on the 2 × k table of counts, no continuity correction (Pearson, 1900). Effect size Cramér's V = √(χ²/n): ≥ .10 small, ≥ .30 medium, ≥ .50 large (Cramér, 1946).
The data
Run on the three shares in every slice; results in 8.3.
8.2.10 Real difference (significance)
In simple terms
“Real difference” means a gap this large would be very unlikely if the groups were really alike. Because many measures are checked in each slice, the bar is set higher than usual.
Statistically
Significant when p < 0.05 ÷ m, where m is the number of measures tested in that slice (Bonferroni; Dunn, 1961). The slicing variable itself differs by design and is not tested.
The data
Quartiles by net sale price: m = 8, threshold p < 0.0063; Quartiles by living area: m = 8, threshold p < 0.0063; Quartiles by year built: m = 8, threshold p < 0.0063; View and no view: m = 8, threshold p < 0.0063
8.2.11 Size of a difference
In simple terms
A difference can be real but small. The size word (small, medium, large) says how much the groups pull apart.
Statistically
ε² for Kruskal–Wallis, rank-biserial r for Mann–Whitney, Cramér's V for chi-square, with the thresholds above; below the small threshold the size is “negligible”.
The data
2 real differences across the four slices; sizes are listed in 8.3.
8.2.12 Rounding in the text
In simple terms
Headings and sentences round figures so they read easily; the tables at the end of each section give them in full.
Statistically
Prices in headings round to the nearest $1K; price per SF and days on market to the nearest whole number; living area to the nearest 10 SF; shares and percentage gaps to whole percents.
The data
Days on market is always shown in days.
8.3 Test results
Every test behind every gold box. Statistic, degrees of freedom (df), p-value, the threshold it must beat, and the size of the difference.
8.3.1 Quartiles by net sale price
Measure
Test
Statistic
df
p-value
Threshold
Real difference?
Effect size
Size
Net price per SF
Kruskal–Wallis
H = 4.07
3
0.2539
p < 0.0063
Unclear
ε² = 0.140
large
Living area
Kruskal–Wallis
H = 19.05
3
0.0003
p < 0.0063
Yes
ε² = 0.657
large
Year built
Kruskal–Wallis
H = 1.24
3
0.7445
p < 0.0063
Unclear
ε² = 0.043
small
Days on market
Kruskal–Wallis
H = 1.88
3
0.5977
p < 0.0063
Unclear
ε² = 0.065
medium
Discount from original list
Kruskal–Wallis
H = 3.06
3
0.3824
p < 0.0063
Unclear
ε² = 0.106
medium
Price cut before sale
Chi-square
χ² = 4.26
3
0.2351
p < 0.0063
Unclear
Cramér’s V = 0.377
medium
Seller paid closing costs or repairs
Chi-square
χ² = 1.42
3
0.7007
p < 0.0063
Unclear
Cramér’s V = 0.218
small
Has a view
Chi-square
χ² = 7.81
3
0.0502
p < 0.0063
Unclear
Cramér’s V = 0.510
large
8.3.2 Quartiles by living area
Measure
Test
Statistic
df
p-value
Threshold
Real difference?
Effect size
Size
Net sale price
Kruskal–Wallis
H = 20.56
3
0.0001
p < 0.0063
Yes
ε² = 0.709
large
Net price per SF
Kruskal–Wallis
H = 4.81
3
0.1861
p < 0.0063
Unclear
ε² = 0.166
large
Year built
Kruskal–Wallis
H = 1.02
3
0.7968
p < 0.0063
Unclear
ε² = 0.035
small
Days on market
Kruskal–Wallis
H = 6.15
3
0.1047
p < 0.0063
Unclear
ε² = 0.212
large
Discount from original list
Kruskal–Wallis
H = 1.41
3
0.7024
p < 0.0063
Unclear
ε² = 0.049
small
Price cut before sale
Chi-square
χ² = 4.40
3
0.2209
p < 0.0063
Unclear
Cramér’s V = 0.383
medium
Seller paid closing costs or repairs
Chi-square
χ² = 4.91
3
0.1784
p < 0.0063
Unclear
Cramér’s V = 0.405
medium
Has a view
Chi-square
χ² = 3.72
3
0.2928
p < 0.0063
Unclear
Cramér’s V = 0.352
medium
8.3.3 Quartiles by year built
Measure
Test
Statistic
df
p-value
Threshold
Real difference?
Effect size
Size
Net sale price
Kruskal–Wallis
H = 2.70
3
0.4398
p < 0.0063
Unclear
ε² = 0.093
medium
Net price per SF
Kruskal–Wallis
H = 4.14
3
0.2464
p < 0.0063
Unclear
ε² = 0.143
large
Living area
Kruskal–Wallis
H = 0.26
3
0.9678
p < 0.0063
Unclear
ε² = 0.009
negligible
Days on market
Kruskal–Wallis
H = 3.99
3
0.2629
p < 0.0063
Unclear
ε² = 0.137
medium
Discount from original list
Kruskal–Wallis
H = 2.36
3
0.5012
p < 0.0063
Unclear
ε² = 0.081
medium
Price cut before sale
Chi-square
χ² = 4.07
3
0.2536
p < 0.0063
Unclear
Cramér’s V = 0.369
medium
Seller paid closing costs or repairs
Chi-square
χ² = 2.40
3
0.4940
p < 0.0063
Unclear
Cramér’s V = 0.283
small
Has a view
Chi-square
χ² = 2.49
3
0.4777
p < 0.0063
Unclear
Cramér’s V = 0.288
small
8.3.4 View and no view
Measure
Test
Statistic
df
p-value
Threshold
Real difference?
Effect size
Size
Net sale price
Mann–Whitney U
U = 107.00
—
0.4366
p < 0.0063
Unclear
rank-biserial r = 0.189
small
Net price per SF
Mann–Whitney U
U = 112.00
—
0.3108
p < 0.0063
Unclear
rank-biserial r = 0.244
small
Living area
Mann–Whitney U
U = 93.00
—
0.9062
p < 0.0063
Unclear
rank-biserial r = 0.033
negligible
Year built
Mann–Whitney U
U = 117.00
—
0.2075
p < 0.0063
Unclear
rank-biserial r = 0.300
medium
Days on market
Mann–Whitney U
U = 99.00
—
0.6882
p < 0.0063
Unclear
rank-biserial r = 0.100
small
Discount from original list
Mann–Whitney U
U = 88.00
—
0.9436
p < 0.0063
Unclear
rank-biserial r = 0.022
negligible
Price cut before sale
Chi-square
χ² = 0.24
1
0.6277
p < 0.0063
Unclear
Cramér’s V = 0.090
negligible
Seller paid closing costs or repairs
Chi-square
χ² = 2.52
1
0.1127
p < 0.0063
Unclear
Cramér’s V = 0.295
small
8.4 Data notes
Left out of the analysis: 0 new-construction sales (basic statistics only, section 7); nothing else. Statistics: Python, NumPy 2.5.3, SciPy 1.18.1.
8.5 References
Cohen, J. (1988). Statistical Power Analysis for the Behavioral Sciences (2nd ed.). Erlbaum.
Cramér, H. (1946). Mathematical Methods of Statistics. Princeton University Press.
Dunn, O. J. (1961). Multiple comparisons among means. JASA, 56(293), 52–64.
Kerby, D. S. (2014). The simple difference formula: an approach to teaching nonparametric correlation. Comprehensive Psychology, 3, 11.IT.3.1.
Kruskal, W. H., & Wallis, W. A. (1952). Use of ranks in one-criterion variance analysis. JASA, 47(260), 583–621.
Mann, H. B., & Whitney, D. R. (1947). On a test of whether one of two random variables is stochastically larger than the other. Annals of Mathematical Statistics, 18(1), 50–60.
Pearson, K. (1900). On the criterion that a given system of deviations… Philosophical Magazine, 50(302), 157–175.
Tomczak, M., & Tomczak, E. (2014). The need to report effect size estimates revisited. Trends in Sport Sciences, 21(1), 19–25.